Mechanical movement.



` I'. Ds ZIMMERMAN.

MECHANICAL MOVEMENT. APPLIUATION FILED Nov. 1s, 1909.

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NVENTOR A wrdnw Znn'nan,

ST S

FRANK D. ZIMMERMAN, OF SCHOENECK', IENNSYLVANI' MECHANICAL MOVEMENT.

Snecication ofIietters Patent. Patented Aug. 16,1910.

Application led November 16, 1909. Serial No. 528,345.

To all whom it may concern:

Be it known that I, FRANK D. ZIMMnR- MAN, a citizen of the United States, residing at Schoeneck, in the county of Lancaster and State of Pennsylvania, have ,invented certain new and useful Improvements in Mechanical Movements, of which the follo'wing is a specication, reference, being had therein to the accompanying drawing.`

My invention relates to a mechanical movement or gearing of that class known as a quick return movement, such as are employed in sausage stufers, grinders, drills and presses, where it is desired to reciprocate a rod, and where the downward movement of the rod is comparatively slow and the upward movement much faster, and where the driving shaft or crank always revolves in the same direction, and the return or upward movement of the rod is accomi plished by the use of shift gears.

The ob] eets of the invention are to produce a mechanical movement or gearing of this class, that has few parts, possessesgreat4 leverage and power'for the working stroke and a quick return for the. idlestroke, without reversing-,the direction of revolution` of' A 'the 4operating crank.

With these and otherobjects in view my device consists in certain construction and combination of parts as will be hereinafter fully described and claimed in this specification and illustrated in the accompanying drawings, which form a part of this appli'- cation and in which like figures of reference refer to corresponding parts in all of the views; but it is fully understood that I do not confine myself to the eXact desi as shown,- as slight changes may be made 1n the construction and arrangement of the several parts within the scope of the claims without departing fromthe spirit ofthe invention. i

In the accompanying drawings, I have simply indicated bearing brackets for the various parts, as my novel form of gearing may be mounted in any suitable frame as will be required for different uses.

ln the drawings -Figure 1, is a vertical sectional view, taken through the center. Fig. 2, isa bottom lan View.

Referring to the rawings 1, indicates the reciprocatingrod, which is formed with the thread 2, and .is splined 3, as shown in Fig.

.1, to receive the feather 4, which is secured,` t in the bearing 5, of the frame to restrainr said .rod 1, from rotating therein, but allow-`4 ing it to be reciprocated through said bearing 5, and the bearing which is also in the frame 7 said bearings 5, and 6, also servmg to prevent any lateral movement Aof the combination gear 8, which is provided with the threadl, and which is mounted on the rod 1; and by its revolutions it raises or lowers said r'od l, according to the direction of its revolution. Said rod l, may be attached at either end to suitable mechanism, but is here indicated in the drawings as having its working stroke in the direction of the arrow, namely, downward. The combination gear 8 is formed with the internal gear teeth 10, upon its flanged 1periphery 11, and upon `its hub 12, with the bevel gear teeth 13, and upon the same side thereof. At right angles to said rod 1, and slidably and rotatably mounted in the bearings 14;, of the main frame 7 is a driving shaft 15, which is here `shown as being operated bythe crank 16,

but which'may be operated by any suitable power. Upon the inner end of said shaft 15, is rigidly `secured the combination bevel gear 17, which is provided with the teeth 18,

which are adapted to mesh with and drive` the bevel teeth 13 on the gear 8; `and-upon i its other side is' formed thel bevelgearfw,

of much smaller diameter. Mount-odin the` vertical bearing 20, which is formed inthe frame 7 and which is parallel tothe rod l,4

is rotatably mounted shaft 21, upon the upper eud of which is secured a pinion 22,

which is in mesh with and rotatesthe internal gear 10; and upon its lower end is secured a bevel gear 23, which is designed to mesh with and be rotated by the bevel 4gear 19. Upon the shaft 15, and between the bearings 14E, is secured a collar 24, which is formed withthe encircling grooves 25, in

the periphery thereof; while above said collar 24E, in the frame 7, is mounted a retaining pin or catch 2G, which is actuated by the spring -27 in such a manner that its lower end rides uponsaid collar, and it will eni gage and ride in either of the grooves 25, s,

"untillthegears- 23, and 19, are brought into engagement and areretained thereby by the vpin 26, engaging the inner groove 25, when by the rotation of the shaft 15, the shaft 21,

v will be rotated, thus rotating the combination gear 8, in a proper direction to force the rod downward, the leverage being the greatest andthe speed slow. As soon as it is desired to raise'the" rod, the shaft 15, 1s forced inward, thus disengaging the gears 23, and 19,.and engagingthe gears 18, and 13, and changing the direction of rotation .of the combination gear 8, and raising the rod rapidly as the driving gear is the larger. The catch pin 26, now enga es the o uter groove 25, and the gears 10, an 22, .run idle. Having thus described my invention what I claim as new and desire to secure by Let. ters Patent is 1. In a deviceof the class described, in

combination with a reciprocating rod, havmesh with said internal spur gear, a bevel gear secured upon the lower end ,of said lvertical shaft, a shift gear formedwith bevel gears upon both sides thereof, one of said bevel gears being designed to engage with and drive the bevely gear formed on the combination gear, and the other bevel gear designed to engage with and drive the bevel gear secured upon/the vertical shaft, meansYY for, changing the position of said driving shaft so that said shift gear may be brought into engagementwith either set of Htngears, to drive the combination gear.

2. In a device of the class described, in combination with a frame a driving shaft slidably mounted within the frame, of means for limitin the lateral movement of said driving sha comprising a collar rigidly secured upon said shaft and formedwith encircling grooves in the periphery thereof, a spring-actuated catch-pin mounted in said frame and adapted to enga e either of said grooves for. the purpose o retaining said driving shaft in either of its eXtreme positions, a shift gear formed with bevel teeth upon its opposite sides, a combination flanged gear formed with bevel teeth upon its hub and internal spur gear teeth upon its fiange, and mounted in said frame at right angles to said drivingshaft and adapted to be rotated in one direction by said shift gear, an idler shaft mounted in said frame, gears carried by said idler shaft for the urpose of transmitting motion from said s ift gear to rotate said combination gear in the opposite direction and a rod screw-threaded within said combination gear and adapted to be reciprocated by the rotation thereof.

- 3. In a quick Areturn -gearing of theclass described, in combination` with a driving shaft and a reciprocating rod mounted at right angles to said driving shaft, of a om bined bevel and internal spur gear screw# threaded upon said rod and restrained from lateral movement, a shaft mounted arallel to said rod, a pinion on one end of said shaft in meshv with said internal gear, a bevel gear secured upon the other end off/said shaft, and a shift gear mounted ad'acent thereto and adapted to be thrown in or out of engagement therewith.

Witnesses:

J. R. SHIRE, W. E. CRoUsE.

In testimony whereof I affix my signatureV 

